In Word 2019, I frequently use CTRL+SHIFT+RIGHT ARROW to select text to the right. However, somewhat frequently my pinkie finger goes too light on - or entirely misses - the right arrow, leaving me with only pressing CTRL+SHIFT.

When that happens, the current paragraph becomes right aligned.

I see no documentation in Word or even in any forum that CTRL+SHIFT right aligns a paragraph.

I have looked for macros or key assignments that would explain this, but there is nothing that I can find.

I even thought of assigning that key combination to something equal to NULL (maybe a macro that types a space and then backspaces it or similar), but Word does not offer the option to assign CTRL+SHIFT to anything.
It is frustrating. Suggestions other than doing pinkie exercises so that it doesn't miss?